Download e-book for kindle: Ceramic Materials from Coffee Bagasse Ash Waste by Wilson Acchar, Eduardo J. V. Dultra

By Wilson Acchar, Eduardo J. V. Dultra

ISBN-10: 3319152807

ISBN-13: 9783319152806

ISBN-10: 3319152815

ISBN-13: 9783319152813

This e-book proposes using espresso bagasse ash (CBA) waste as uncooked fabric for use in ceramic formulations. The method offered here's a approach to a present ambiental challenge as CBA waste is discharged in excessive quantities in agriculture. The authors examine the potencial of CBA as a fabric to replacement feldspar in tile production.

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Example text

It was observed that the t­ emperature of onset of sintering is within a rather narrow range for masses containing ­residue R1. According to the analysis of data, it was found that the addition of residue R1 influenced the temperature of onset of sintering in relation to mass MB. Mass MB begun sintering at 868 °C, while masses with residue R1 started sintering at 858, 862, and 863 °C, respectively, according to the increasing amount of residue added. 2 shows the curves of dilatometric analyses of masses containing ­residue R2 and flux-free mass (MB).

13 shows the graph with TGA, DrTG, and DTA curves of pyrophyllite. 6 % may be observed up to 850 °C. 65 °C is related to the allotropic transformation of quartz shown above. 14). 4 % SiO2, for 100 % MgO and SiO2), the formation of the enstatite phase (MgO·SiO2) is more likely to occur, since the formation of the fosterite phase (Mg2SiO4) occurs for compositions with higher MgO contents. However, in this case, only the composition with percentages of MgO and SiO2 of one of the raw materials is not enough to identify with accuracy which phase was formed due to the interference from the other components.

3 Standard Formulation of Supplier Company The formulation used by the company to produce glazed porcelain tile was ­provided together with the raw materials, provided the wording, designated in this work with MP. 1 describes the percentage by weight of the standard MP mass and MB mass, free from fluxes. The MP formulation was used as a comparison parameter in relation to the properties for formulations with the addition of residues. The MB mass, whose acronym stands for basic mass, is a mixture of clay, ­kaolin, and quartz in the same proportions of MP, where the same ratios between the amounts of clay and kaolin, and between clay and quartz were kept, but w ­ ithout fluxing materials (feldspar, talc, and pyrophyllite).

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Ceramic Materials from Coffee Bagasse Ash Waste by Wilson Acchar, Eduardo J. V. Dultra

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